diff --git a/manpages/brew.1 b/manpages/brew.1
index 9ebdc66b90..fee4bd3757 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -524,7 +524,7 @@ If \fB\-\-force\fR (or \fB\-f\fR) is specified then always do a slower, full upd
 Options for the \fBinstall\fR command are also valid here\.
 .
 .IP
-If \fB\-\-cleanup\fR is specified or \fBHOMEBREW_UPGRADE_CLEANUP\fR is set then remove previously installed \fIformula\fR version(s)\.
+If \fB\-\-cleanup\fR is specified or \fBHOMEBREW_UPGRADE_CLEANUP\fR is set then remove previously installed version(s) of upgraded \fIformulae\fR\.
 .
 .IP
 If \fB\-\-fetch\-HEAD\fR is passed, fetch the upstream repository to detect if the HEAD installation of the formula is outdated\. Otherwise, the repository\'s HEAD will be checked for updates when a new stable or devel version has been released\.